Code Model Test - AC: gain, summer, mult, divide, pwl
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*** analysis type ***
.ac dec 10 10 1000
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*** input sources ***
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v1 1 0 1.0 AC 1.0 0.0
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v2 2 0 1.0 AC 1.0 0.0
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v3 3 0 DC 2.0
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v4 4 0 0.5 AC 0.5 0.0
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*** gain block ***
a1 1 10 gain1 
.model gain1 gain (in_offset=0.0 gain=2.0 out_offset=0.0)
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*** summer block ***
a2 [1 2] 20 summer1
.model summer1 summer (in_offset=[0.0 0.0] in_gain=[1.0 1.0] 
+                      out_gain=1.0  out_offset=0.0)
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*** mult block ***
a3 [1 3] 30 mult1
.model mult1 mult (in_offset=[0.0 0.0] in_gain=[1.0 1.0] 
+                      out_gain=1.0  out_offset=0.0)
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*** divider block ***
a4 1 3 40 divide1
.model divide1 divide (num_offset=0.0 num_gain=1.0 den_offset=0.0 den_gain=1.0 
+                      den_lower_limit=1.0e-10 den_domain=1.0e-16 
+                      fraction=false out_gain=1.0 out_offset=0.0)
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*** pwl block ***
a5 4 50 pwl1
.model pwl1 pwl (x_array=[-1.0 0.0 1.0 2.0 3.0 4.0 5.0]
+                y_array=[-1.0 0.0 1.0 4.0 4.5 5.0 5.0]
+                input_domain=0.01 fraction=TRUE)
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*** resistors to ground ***
r1 1 0 1k
r2 2 0 1k
r3 3 0 1k
r4 4 0 1k
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r10 10 0 1k
r20 20 0 1k
r30 30 0 1k
r40 40 0 1k
r50 50 0 1k
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.end